Home / 25,785.82-35,584.39-15,714.30

Finding the Fourth Proportional to 25,785.82, 35,584.39 and 15,714.30

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Solution

The fourth proportional to 25,785.82, 35,584.39 and 15,714.30 is: 21,685.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,785.82 : 35,584.39 = 15,714.30 : x
  2. Step 2: Convert to fraction form
    25,785.82/35,584.39 = 15,714.30/x
  3. Step 3: Cross multiply
    25,785.82x = 35,584.39 × 15,714.30
  4. Step 4: Simplify right side
    25,785.82x = 559,183,779.78
  5. Step 5: Solve for x
    x = 559,183,779.78/25,785.82
  6. Step 6: Final answer
    x = 21,685.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.